The Beam config has 2 subtypes: Beam_member and Beam_shell. The first is made of 1D
elements while the second points to freebody sections. Both configs come with their
flavor of the same actual methods:
- Stringer Axial Stress
- Stringer compressive buckling
The Stinger Axial Stress is a simple method which calculates the Compressive/Tensile
margin of safety as:
MS= [(Compressive Stress limit)*(section Area)/(Axial Force)] -1; (resp. Tensile
Stress limit)
In the case of freebody sections, Axial Force is mapped to the freebody resultant
Fx.
The compressive buckling method evaluates
with:
-
: average axial stress as (Axial
Force)/(Section’s area)
-
-
: material compressive stress limit
-
- K_constraint = “constraint coefficient” on structural property.
Def=0.0699
-
: beam section’s radius of gyration
- E: material young’s modulus